A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.
Classification: Check valves of steel
NSN 6150-00-401-0709
NSN 6135-00-884-7897
NSN 5905-00-932-2971
NSN 5960-01-641-5493
NSN 5835-01-381-2683
NSN 5975-01-127-7595
NSN 5975-01-194-8261
NSN 6150-00-125-4543
NSN 5925-01-578-0404
NSN 7035-00-631-3782
NSN 6685-01-197-6800
NSN 6685-01-408-7758